[15p-M_178-1~8] Frontiers and Perspectives on Fault-Tolerant Quantum Computing

2:30 PM - 3:00 PM JST(5:30 AM - 6:00 AM UTC)

[15p-M_178-3] Superconducting quantum computer project

〇Yutaka Tabuchi¹ (1.RIKEN RQC)

Keywords:

Quantum computer,Superconducting circuits

Superconducting quantum computing is advancing rapidly. To overcome finite device noise, research in fault-tolerant quantum computing (FTQC) through quantum error correction is now accelerating. In this talk, I introduce integration technologies under the Moonshot R&D Program, aiming for FTQC by 2050. Realizing FTQC requires: (a) system architectures for reliable quantum operations, (b) large-scale, uniform fabrication, (c) quality improvements, i.e. qubit stability and coherence, (d) downsizing qubits for high-density arrays, (e) scalable cryogenic electronics for high-fidelity control, (f) high-density microwave interconnects, and (g) advanced cooling for large-scale hardware, etc. These efforts have been made in organic collaboration across diverse academic fields. Integrating these elements is a massive undertaking; we must decompose the FTQC structure to identify critical bottlenecks. We will outline the roadmap for system integration, address specific technical hurdles in scaling, and provide a strategic outlook for achieving the goal.